Adhesion of PVD and CVD hard coatings as an essential parameter that determines the durability of coated tools
Journal Title: Archives of Materials Science and Engineering - Year 2019, Vol 1, Issue 96
Abstract
Purpose: The work is connected with the current trend related to the modification of tool surfaces with PVD and CVD methods through the deposition of coatings to increase their durability. The research results of coated tools tests that are carried out in industrial conditions are presented in details. Design/methodology/approach: Structure, chemical and phase composition investigations related to the mechanical and tribological properties of coatings produced on tool substrates and analysis of the results are included. Investigations of the properties of deposited coatings on the following tool materials were made: high speed steels, hot work tool steel, sintered carbides and SiAlON tool ceramics. Findings: Interpretation of production tests results of coated tools and an analysis of the wear mechanisms of tool blades in relation to the properties of coatings and their adhesion, in particular characterized in the scratch test, were described. Research limitations/implications: Adhesion scratch test cannot be the only and final method of such evaluation. For example a direct comparison of the results of the scratch tests of coatings is possible when adhesion is being examined of different coatings yet on the same type of the substrate. Practical implications: Based on the adhesion test results using the scratch test, the suitability of the coatings produced on the cutting tools can be quickly assessed. Originality/value: It was sought those parameters which characterize the properties of coatings, ones which would permit to effectively/practically assess the performance of tools with coatings produced, with an exclusion or limitation of long-term and expensive durability tests of tools that are carried out in industrial conditions.<br/><br/>
Authors and Affiliations
M. Pancielejko
Keywords
Related Articles
- EP ID EP560070
- DOI 10.5604/01.3001.0013.1988
- Views 73
- Downloads 0
Development of removable partial dentures by using additive manufacture and casting processes
Purpose: This work aims to present a methodology developed for dimensional analysis of removable partial dentures, following a route with a model manufactured by additive manufacture and a further casting process of a Co...
Mode I and mode II fatigue crack growth resistance characteristics of high tempered 65G steel
Purpose: To investigate the fatigue crack growth at normal tension and transverse shear of 65G steel with the high tempered martensite microstructure and to build an appropriate fatigue crack growth rate curves. To deter...
Oxide layers on titanium obtained by anodizing in orthophosphoric acid
Purpose: Titanium is an essential material used in modern dentistry, mostly due to its tissue compatibility. However, there are another physicochemical assets, which can be harnessed. One of these is enhancing the bondin...
The new generation of the biologicalengineering materials for applications in medical and dental implant-scaffolds
Purpose: The publication aims to find the relationship between the proliferation of surface layers of living cells and the deposition of thin atomic layers deposition ALD coatings on the pores internal surfaces of porous...
Study the precision of fixed partial dentures of Co-Cr alloys cast over 3D printed prototypes
Purpose: of this paper is to investigate the accuracy of Co-Cr dental bridges, manufactured using 3D printed cast patterns. Design/methodology/approach: Four-unit dental bridges are fabricated from the alloys i-Alloy and...